Responder:
x = 40
y = 120
z = 80
Explicación paso a paso:
Número dividido = 240
Las 3 partes:
x, y, z
y = 3x
Z = 3x - 40
x + y + z = 240
x + 3x + 3x - 40 = 240
7x - 40 = 240
7x = 240 + 40
7x = 280
x = 280/7
x = 40
y = 3 (40)
y = 120
z = 3x - 40
z = 3 (40) - 40
z = 120 - 40
z = 80
Write as a product (5c-3d)^2-9d^2
Answer:
25c^2-30cd
Step-by-step explanation:
The product of expression is,
⇒ 5c (5c - 6d)
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ (5c - 3d)² - 9d²
Now, We can write the expression in form of product as;
⇒ (5c - 3d)² - 9d²
⇒ (5c - 3d)² - (3d)²
⇒ (5c - 3d - 3d) (5c - 3d + 3d)
⇒ (5c - 6d) (5c)
⇒ 5c (5c - 6d)
Thus, The product of expression is,
⇒ 5c (5c - 6d)
Learn more about the mathematical expression visit:
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PLEASE HELP ME!!! I HAVE 15 MINS
the right answer for that question is c
PLEASE HELP!
James ran 28 miles in `2\frac{1}{3}`hours. What was his rate in miles per hour?
Write the expression, then solve. Must show all work.
Answer:
15 mph
Step-by-step explanation:
28mi=2 1/3
2 1/3 = 2 hrs 20min
110min
28/110=.254 mi per min
.25*60=15 mi per hrs
Radius
Diameter: 26 inches
Circunference :
Area:
Answer:
Radius is 13
Circumference = 26π
Area is 169π
Step-by-step explanation:
use the radius, circumference, and area formulas.
Radius is 13
Circumference = 26π
Area is 169π
substitute pi for 3.14, 3, etc if needed
Hari can do a piece of work in 8 days. In how many days would he do one-fourth of the same work ? Can anyone show the process as well ? Will matk brainlieast
Answer:
2 days
Step-by-step explanation:
I figured out what 1/4 of 8 was by taking 2 and multiplying it by 4. You can also get this same answer by dividing 8 by 4.
Find exact value. tan (sin-1 5/8)
Answer:
The chicken closed the road.
And then he crawled up the spot
and come over the duck
Can I get some help with this question
If a⁵ = 3⁵, simplify (2a)⁷ ?
3⁷3⁸6⁶6⁷Answer :D option 6⁷ is the right answer.Explanation :Given :a⁵ = 3⁵To Find :(2a)⁷Solution :As, we have a⁵ = 3⁵
We know that if powers are equal then the base are also equal. In a⁵ = 3⁵, powers are equal on both sides so base will also be equal.
∴ a = 3
Now, we have to find (2a)⁷, so by substituting a = 3, we have :
⟹ (2a)⁷ = (2 × 3)⁷
⟹ (2a)⁷ = (6)⁷
⟹ (2a)⁷ = 6⁷
Therefore, correct answer is 6⁷.
Hence, correct option is D.
what is the value ofny when -5 y-7/9
Rita has 10 centimeters of
ribbon. She cuts the
ribbon into 8 equal pieces.
What is the length, in
centimeters, of each
piece of ribbon?
Answer: 1.25
Step-by-step explanation:
because it is
Lines Line A E and Line G H are parallel in the image below. The image will be used to prove that the sum of the measures of the interior angles of Triangle C G H is 180°.
Lines A E and G H are parallel. Angles F and C are congruent.
Which statement would be included in the proof of why Measure of angle C + measure of angle G + measure of angle H = 180 degrees.?
Angles F and H are congruent.
Angles C and E are congruent.
Angles A and G are congruent.
Angles F and C are congruent.
Answer:
he corect f and c
Step-by-step explanation:
The answer would be F and C
Explanation: I got it right on the test I took.
Which quadratic equation?
Answer:
step 1. plug in (-3, 0).
step 2. y = x^2 + x - 6 works and the others dont.
step 3. plug in (-2, -4), (-1, -6), (0, -6), (1, -4), (2, 0)
step 4. All points work in the equation x^2 + x - 6.
I really need this pls
Answer:
[tex]\displaystyle m=-1[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Reading a Cartesian planeCoordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (2, 0)
Point (0, 2)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{2-0}{0-2}[/tex][Fraction] Subtract: [tex]\displaystyle m=\frac{2}{-2}[/tex][Fraction] Divide: [tex]\displaystyle m=-1[/tex]If a person walks 1/2 miles in 3/4 of an hour. What Is the unit rate?
Calculate the equation of the line through the points (-1, 1), (4.0), and (24,-4).
A y = 5x + 6
B y= 1/5x + 4/5
C y= -5x + 4
D y= -1/5x +4/5
Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 1, 1) and (x₂, y₂ ) = (24, - 4) ← 2 points on the line
m = [tex]\frac{-4-1}{24+1}[/tex] = [tex]\frac{-5}{25}[/tex] = - [tex]\frac{1}{5}[/tex] , then
y = - [tex]\frac{1}{5}[/tex] x + c ← is the partial equation
To find c substitute any of the 3 points into the partial equation
Using (4, 0 ) , then
0 = - [tex]\frac{4}{5}[/tex] + c ⇒ c = 0 + [tex]\frac{4}{5}[/tex] = [tex]\frac{4}{5}[/tex]
y = - [tex]\frac{1}{5}[/tex] x + [tex]\frac{4}{5}[/tex] → D
A graduated cylinder that is 24 cm tall can hold 1 L of water.
a. What is the radius of the cylinder? (round to the nearest hundredth)
b. What is the height of the 500 ml mark?
c. The 250 ml mark?
Recall that 1 liter (L) is equal to 1000 milliliters (ml).
Due soon, please I don't understand.
Answer:
LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right, if its not then i dont know what to say.
Step-by-step explanation:
Find the area of equilateral triangle with side a. Please answer with completely simplified exact values. Answer: A = sq. Units
Solution :
It is given that the length of a side of a triangle is given by 'a'.
It is an equilateral triangle.
So the three sides will be of equal length and is a, a, a units.
Now the semi perimeter of the equilateral triangle is given by :
[tex]$S=\frac{a+a+a}{2}$[/tex]
[tex]$=\frac{3}{2}a$[/tex]
Therefore, using the Heron's formula, we can find the area of the equilateral triangle.
Area of the equilateral triangle is given by :
[tex]$A =\sqrt{S(S-a)(S-a)(S-a)}$[/tex]
[tex]$A =\sqrt{\frac{3a}{2}\left(\frac{3a}{2}-a\right)\left(\frac{3a}{2}-a\right)\left(\frac{3a}{2}-a\right)}$[/tex]
[tex]$A=\frac{\sqrt3}{4}a^2$[/tex] square units.
In the figure, [tex] \angle[/tex] AOB = [tex] \frac{1}{2} [/tex][tex] \angle[/tex] BOC and [tex] \angle[/tex] BOC = [tex] \frac{2}{3} [/tex][tex] \angle[/tex] COD . Show that [tex] \angle[/tex] COD = [tex] \frac{1}{2} \angle[/tex] AOD mentioning necessary axioms.
~Thanks in advance !
Answer:
See Below.
Step-by-step explanation:
Statements: Reasons:
[tex]1)\text{ }\angle AOD=180[/tex] Straight Angle Theorem
[tex]2)\text{ } \angle AOB+\angle BOC+\angle COD=\angle AOD[/tex] Angle Addition
[tex]3)\text{ } \angle AOB+\angle BOC+\angle COD=180[/tex] Substitution
[tex]\displaystyle 4)\text{ } \angle AOB=\frac{1}{2}\angle BOC[/tex] Given
[tex]\displaystyle 5)\text{ } \angle BOC=\frac{2}{3}\angle COD[/tex] Given
[tex]\displaystyle 6)\text{ } \frac{1}{2}\angle BOC+\frac{2}{3}\angle COD+\angle COD=180[/tex] Substitution
[tex]\displaystyle 7)\text{ } \frac{1}{2}\Big(\frac{2}{3}\angle COD\Big)+\frac{2}{3}\angle COD+\angle COD=180[/tex] Substitution
[tex]\displaystyle 8)\text{ } \frac{1}{3}\angle COD+\frac{2}{3}\angle COD+\angle COD=180[/tex] Multiplication
[tex]\displaystyle 9)\text{ } 2\angle COD=180[/tex] Addition
[tex]10)\text{ } \angle COD=90[/tex] Division Property of Equality
[tex]\displaystyle 11)\text{ } \frac{1}{2}\angle AOD=90[/tex] Division Property of Equality
[tex]\displaystyle 12)\text{ } \angle COD=\frac{1}{2}\angle AOD[/tex] Substitution
Answer:
this is your answer. good luck.
ERRE
What is the difference?
4y+6
y-5
2y+ 1
y-5
6y+7
y-5
2y+5
y-5
6y+ 7
-2y-10
2y+5
-2y-10
y-5
2y+ 1
y-5
6y+7
y-5
2y+5
y-5
6y+ 7
-2y-10
2y+5
-2y-10
Translate this sentence into an equation. 99 is the product of Chrissy's age and 9 Use the variable c to represent Chrissy's age.
Answer:
[tex]9c=99\\[/tex]
Step-by-step explanation:
Product means multipulcation
So it must be 9c = 99
Answer:
99=c×9
Step-by-step explanation:
Chrissy =c
99=c×9
that will be your answer because you have been told to write an equation not to solve.
How can you write and
solve equations involving rational numbers?
Convert the rational number to decimals, then solve it as a decimal instead, (with the optional choice of re-converting it back to rational).
Karen bought 8 pounds of fruit to make 3 equal-sized fruit salads. What is the weight of each fruit salad?
Fractions.
Answer:
Improper fraction: 8/3 Mixed Number: 2 2/3
Step-by-step explanation:
In this problem , you have to divide the 8 pounds of fruit into three different salads.
So, you need to divide 8 by 3. So, the answer will be 8/3 OR 2 2/3
Evaluate the function w=-5x-1 when x=-3,0, and 8.
When x = -3;
w = -5(-3) - 1
w = 15 - 1
w = 14
When x = 0;
w = -5(0) - 1
w = 0 - 1
w = -1
When x = 8;
w = -5(8) - 1
w = -40 - 1
w = -41
Best of Luck!
700, 1200, 1600, 2000, X
If the mean of the five numbers above is 1600, what
is the value of x ?
Answer:
2500
Step-by-step explanation:
The mean of 700, 1200, 1600, 2000, 2500 is 1600.
please, PLEASE answer this fast! I have 1 hour left before I pass it. Please help :( answer it properly! Thank you in advance.
-This is grade 8 math-
1.What elements belong to Set A and Set B?
2. Is there a repetition of the first elements in the ordered pairs? How about in second elements of the ordered pairs?
3. Does the set of ordered pairs represent a relation?
4. How is a relation represented?
Answer:
The range is is set of all second pairs (y-coordinates) while the domain is the set of first pairs(x-coordinates)
Step-by-step explanation:
PLEASE HELP THANKS YOU
In Triangle ABC. AB = 5, BC=8. and AC = 7. Name the largest angle of triangle ABC
i think its A
Step-by-step explanation:
Which of the following is the slope of a line that passes through the points (-5, 10) and (15, 2)
Answer:
(4) -2/5
Step-by-step explanation:
Rise/run
is (6, 0) a coordinate, a slope, or neither
Answer:
Coordinate
Step-by-step explanation:
It is a coordinate because with slope you would need at least two ordered pairs
Answer:
A coordinate.
Step-by-step explanation:
A coordinate takes the form of ( x , y ), in which x is the horizontal, while y is the vertical.
In this case, (6 ,0) is the given coordinate, in which it displaces +6 to the right of the (0 , 0).
~
A slope will typically look like either a whole number, or the more usual fraction.
~
find the area of shaded region in given figure 14 cm and 7 cm
Given:
The radii of circles are 14 cm and 7 cm.
To find:
The area of the shaded region.
Solution:
Area of a circle is
[tex]Area=\pi r^2[/tex]
From the given figure, it is clear that
Area of shaded region = Area of larger circle - Area of smaller circle
= [tex]\pi (14)^2-\pi (7)^2[/tex]
= [tex]\dfrac{22}{7}\times 14\times 14-\dfrac{22}{7}\times 7\times 7[/tex]
= [tex]616-154[/tex]
= [tex]462[/tex]
Therefore, the area of the shaded region is 462 sq. cm.
What is the MAD of these numbers 1,1,4,5,5,5,6,7,7,10,10?
Please give an explanation
Answer:
2.2314
Step-by-step explanation:
To find the mean absolute deviation of the data, start by finding the mean of the data set.
1+1+4+5+5+5+6+7+7+10+10= 61
61÷11= 5.5-2.5= 2.2
Example:
Find the MAD of 2,4,6,8
Step 1 :
Find the mean of the data :
(2+4+6+8) / 4 = 20/4 = 5
Step 2 :
Find the distance between each data and mean.
Distance between 2 and 5 is 3
Distance between 4 and 5 is 1
Distance between 6 and 5 is 1
Distance between 8 and 5 is 3
Step 3 :
Add all the distances :
3+1+1+3 = 8
Step 4 :
Divide it by the number of data :
8 / 4 = 2